Armrest



FIG. 1 is a perspective view of an armrest showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a right-side elevational view thereof;

FIG. 5 is a left-side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a perspective view illustrating the position of the armrest on a chair thereof.

The broken lines in the drawings depict part of the armrest that form no part of the claimed design. 

CLAIM The ornamental design for an armrest, as shown and described. 